I have 3gb and 6gb Nvidia cards (P106-90 and P106-100). Try to use the 3gb ones to mine UBQ and 6gb ones to mine ETC. Once I open a second session to mine the other coin, the program always shows "driver is in use" and won't apply the mining straps for the second session. How to fix this?
Get one miner for 6 gig cards and one miner for 3 gig cards. Not a good idea to mix and match cards and algorithms too much.